sinh

(PHP 4 >= 4.0.7, PHP 5)

sinh — 双曲正弦

float sinh ( float $arg )

返回 arg 的双曲正弦值，定义为 (exp(arg) - exp(-arg))/2。

参见： sin()、 asinh()、 cos()和 tan()。

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sqrt

sin

Last updated: Mon, 26 Nov 2007

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